Which of the following is absent in the primary and secondary structure of the stem of $Pinus$?
- ASieve tubes
- BMucilage duct
- CCompanion cells
- DPhloem parenchyma
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Similar Questions
Select the correct option$(s)$ from the following statements:
$(i)$ Fibers are thin-walled,elongated,and pointed cells.
$(ii)$ Water-containing cavities (lysigenous cavities) are found in the vascular bundles of monocot stems.
$(i)$ Fibers are thin-walled,elongated,and pointed cells.
$(ii)$ Water-containing cavities (lysigenous cavities) are found in the vascular bundles of monocot stems.
Easy
View SolutionWhat is the term for a stele that contains numerous scattered vascular bundles?
Easy
View SolutionVascular bundles of monocot stem are surrounded by which of the following?
Medium
View SolutionStarch sheath and bundle cap are found in the internal structure of:
Medium
View SolutionThe innermost layer of the cortex,which is also known as the starch sheath,is:
Medium
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